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For the other carbine variants of the M16, see the CAR-15, R4-C, 416-C Carbine, C8-SFW, C7E and AR-15.50

The M4 is a carbine developed by the United States in the 1980s as a shortened version of the M16A2. It fires 5.56x45mm NATO rounds and is capable of semi-automatic and three round burst fire. The M4 has been used extensively by the United States Armed Forces in addition to 60 other countries across the globe since its inception. Starting in the 1990s, the weapon has been further modified to increase its reliability and performance. The M4A1 variant of the weapon has a removable carry handle and is capable of semi-automatic and fully-automatic fire modes and is used by special forces units in the United States military.

Rogue Spear[]

The 5.56mm M4 AR is a weapon featured in Tom Clancy's Rainbow Six: Rogue Spear.

A compact version of the 5.56mm M16 AR, the 5.56mm M4 AR is commonly used when the firepower of an assault rifle is needed, but the weight and size is not. It is commonly used by US and Israeli special forces. It comes standard with a single and full auto trigger group.


Take-Down[]

The M4 SD is a weapon featured in Tom Clancy's Rainbow Six: Take-Down – Missions in Korea


Lone Wolf[]

"A compact version of the M-16, the M4 carbine is commonly used when the firepower of an assault rifle is needed, but the weight and size is not. It is commonly used by US and Israeli special forces. It comes standard with a single and full auto trigger group."
— In-game Description

The 5.56mm M4 AR is a weapon featured in Tom Clancy's Rainbow Six: Lone Wolf.


Raven Shield[]

The M4 is a weapon featured in Tom Clancy's Rainbow Six 3: Raven Shield.

Attachments[]


Rainbow Six 3 (Console)[]

The M4 is a weapon featured in Tom Clancy's Rainbow Six 3 (Console).


Black Arrow[]

The M4 is a weapon featured in Tom Clancy's Rainbow Six 3: Black Arrow. The weapon is equipped with a C-more Reflex Sight by default.


Lockdown[]

"A custom version of the versatile US carbine with a flip-up sight replacing the stanard carrying handle. Normally the SR-4 uses the Scope, Red Dot, High Capacity Magazine or Suppressor attachments."
— In-game description

The SR-4CQB, or the SR-4 on PC versions of the game, is a weapon featured in Tom Clancy's Rainbow Six: Lockdown.

Overview[]

In the console versions of the game, the SR-4CQB is equipped with an underbarrel shotgun attachment by default.

In the PC version of the game, the SR-4 lacks the underbarrel attachment seen in the console versions of the game. The SR-4 is used by the Global Liberation Front in the mission Castle.

Attachments[]

Gallery[]

Siege[]

"This government-issued assault rifle has been customized with additional features."
— In-game description

The M4 is an assault rifle featured in Tom Clancy's Rainbow Six Siege in the Operation Grim Sky expansion pack. It is available for use by Maverick.

Overview[]

The M4 is a well-rounded weapon with decent handling, above-average damage, and adaquate rate of fire. Its first-shot recoil is noticeable, so the Flash Hider attachment is recommended over the Compensator. That being said, it is still suitable for mid-range engagements.

Pros[]

  • Above-average damage output
  • Good rate of fire
  • Versatile attachments

Cons[]

  • Subpar vertical recoil
  • Harsh damage dropoff

Attachments[]

Sight
Barrel
Grip
Under Barrel

Gallery[]

Gameplay[]

Models[]

Patch Changes[]



Mobile[]

This section is currently under construction. It may contain little or inaccurate information.

The M4 is a weapon featured in Tom Clancy's Rainbow Six Mobile. It is available for use by the Attacking Recruit.

Attachments[]

Slot Attachment
Optics
Side Rail
Muzzle
Grip
Magazine
Internal


Trivia[]

  • The rifle is erroneously designated as the M4 instead of the M4A1 in several of its appearances. This can be noted by the M4A1's capability to perform fully-automatic fire as opposed to the M4's burst fire.
  • In Tom Clancy's Rainbow Six: Rogue Spear, it is actually modeled off of the Colt Model 733 carbine.

Siege[]

  • Maverick's Operator Image has him equipped with the M4, which is customized with a Suppressor and an Angled Grip.
  • The weapon is generically designated as an 'M4', which is the burst-fire specific version of the gun, which has only 2 firing modes, semi-auto and 3-round burst. The later M4A1 is the correct designation for this weapon due to its ability to fire full-auto. With that said, either version of the weapon shouldn't have the option of both 3-round burst and full auto firing modes, however the Colt "M4 Enhanced" Models (RO-738, 778, 938, & 978) have this trigger group that includes both three round burst and fully automatic included.
  • This M4 has a custom trigger group which is capable of both three-round burst and fully-automatic, alongside semi-automatic fire, which has only been present in the M16A2 assault rifle as far as AR platform military rifles go.
  • There is no gas block on the M4's model, which means that in reality, the rifle would not be able to automatically cycle after each shot.
  • The M4 is based on a customized M4A1 Block II rifle with a Daniel Defense MK18 RIS II railed handguard and a Command Arms UMPG16 pistol grip.
  • The M4 features a unique Suppressor, yet similar to Caveira's Luison.
  • The M4 is depicted as a Rifle while in reality the M4 is a carbine (The M16 is the Rifle version of the M4)
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